What can a drop of liquid mercury be described as?

A) a pure substance and a compound

B) an impure substance that is reactive

C) an impure substance that is unreactive

D) a pure substance and an element

Hydrogen bonds can be found between molecules of which substance? NH3 H2 HI CH4

A mixture is poured through a filter, and the entire mixture passes through

What is the chemical formula for dihydrogen monoxide

What do you think is meant by the phrase "a balanced diet"?

The change in entropy, Δ S ∘ rxn, is related to the the change in the number of moles of gas molecules, Δ n gas.

Does Silicon-32 has a half-life of 170 years and can be used to find the age of rocks it is contained in.

What tool would you use to compare the mass of two objects

The first three electrons that enter into p orbitals must have a. parallel spins. b. opposite spins. c. low energy levels. d. opposite charges.

Write the chemical symbols for three different atoms or atomic cations with 19 electrons.

A sample of dolomitic limestone containing only caco3 and mgco3 was analyzed. a. when a 0.2800 gram sample of this limestone was decomposed by heating, 75.0 milliliters of co2 at 750 mmhg and 20 degrees celcius were evovled.